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Build a Pond |
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How To
Build a Pondless Waterfall |
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How To Build A Pondless Waterfall
Step 1
Location, Location, Location! First and foremost, locate and mark out
your Pondless Waterfall Basin Area before you do
anything.
- By using a garden hose you can easily create the desired shape for
your basin.
- It is important that you make sure your Pondless basin design does not
exceed the amount of liner that you have in your Pondless Waterfall Kit.
- Be sure to position the BioFalls waterfall unit so that it gives you
maximum viewing pleasure.
- Once you have made a decision on the shape for your basin, use a can
of orange upside down construction spray paint and outline the shape
(around the hose) on the grass or dirt.

Step 2
Place BioFalls
Waterfall Unit into Perfect Position
- The position of the Filter can seriously make or break you feature, so
be sure it's facing your main viewing area.
- If possible, we recommend placing the BIOFALLS six or eight feet from
the basin, to create a short stream to meander between your waterfall and
your Pondless basin.

Step 3
Lay Out Your Plumbing Before Digging
- Save time and money by eliminating the need to dig a trench! Simply
lay out the PVC flex pipe along your stream and the edge of your basin,
before excavation.
- Should you decide to trench for the plumbing, dig the trench deep
enough to cover the pipe with a few inches of soil, to benefit your
plantings.
- In a perfect world the PVC flex pipe should be on a slight decline
from the BIOFALLS to the Snorkel for ease of annual cleaning.

Step 4
Plumb and Level the BIOFALLS Filter
Installing the Bulkhead:
- First off, before leveling the BioFalls unit, install the two
bulkheads into the back of the BIOFALLS filter. The unit is predrilled
with two openings on the back allowing you several plumbing options
1. For single pump installation, glue your PVC flex pipe to one of the
bulkhead fittings, and simply cap the other bulkhead (fitting included in
the Pondless Waterfall kit).
2. For two pump installation, attach both PVC flex pipes, one to each
bulkhead.
- Drain Kit option- A drain kit can be attached to the second bulkhead
fitting on single pump installation applications. The drain kit allows you
the ability to perform water changes more easily and makes your annual
cleaning of the filter much easier.

- Install the bulkhead fittings in the predrilled holes provided in the
back of the BIOFALLS. The rubber washer should be located on the inside of
the BIOFALLS and the plastic washer on the outside. First, hand tighten
the nut on the outside and then finish with a large pair of channel lock
pliers until the rubber washer begins to bulge. This should only be
approximately one full turn past hand tight. Beware of over tightening the
nut, which could possibly crack the bulkhead. Note that the bulkhead
fitting is reverse threaded. In other words, turn the nut counterclockwise
to tighten it.
- You can install the PVC MPT (Male Pipe Thread) to slip fitting into
the desired bulkhead to receive the pump plumbing. The PVC plug fitting is
provided and can be installed in the second bulkhead fitting if it is not
going to be utilized. We recommend using some of the silicone sealant
included in your Pondless Waterfall Kit or Teflon tape (not included) to
coat the threads of the fittings, in order to provide a watertight seal.
SKIPPING THIS STEP, IS A COMMON DO-IT-YOURSELFER MISTAKE.

- Once this is complete, it's time to position the BIOFALLS in the
desired location.
- We recommend setting The BIOFALLS at or slightly below the grade of
the yard. Remove a section of sod if needed or just a few inches of soil
in order to create a firm foundation for the BIOFALLS to sit.
DESIGNER TIP- Don't build a volcano waterfall, keep the waterfall to the
scale of the yard. Your goal should be to create the illusion that Mother
Nature herself has installed the waterfall.

- When raising the BIOFALLS up four or five feet high in a perfectly
flat backyard. The area beneath the BIOFALLS box must be compacted
thoroughly by using a hand tamper. This will help prevent the filter box
from possibly settling in the future.

- Use a two-foot bubble level in order to make sure your BIOFALLS is
properly set into position. It is important that your BIOFALLS be level
from side to side and tilted forward at ¼ of a bubble on a 2' level. This
will ensure the water comes over the front of the BIOFALLS and covers the
entire spillway.
Gluing the Flexible PVC Pipe:
- Now the filter is ready for the flexible PVC to be primered and glued
into place using the PVC cement you will find in you Pondless Kit,
specified for use with flexible piping.
- Prime both the inside of the PVC fitting and the outside of the pipe
where the flexible PVC cement will be applied.

- After priming is complete, apply the specific PVC cement to the
fitting and the PVC pipe and fit the two pieces together, turning slightly
as you push them together.
- It is recommended that you hold the pipe into the fitting for at least
60 seconds to allow the glue to set.
- Wait approximately 10-15 minutes to let the glue completely set before
you begin to backfill the filter with soil and bury the connection.
- Before backfilling around the filter, you should install the support
racks. Otherwise, you may not be able to get them into place after the
soil has been tamped around the sides.
- It is also recommend that someone stand inside the filter box to keep
it level and in place and while it's being backfilled and tamped.
- The excavated soil from the Pondless basin can be backfilled around
the sides and back of the BIOFALLS filter. Tamp the soil during
backfilling in order to reduce settling. Any additional soil can be spread
around the far side of the pondless feature in order to create a planting
bed for perennials and annuals.
- Take the extra time to double check and make sure the BIOFALLS is
still level after installing the plumbing.
Step 5 Begin
Excavating Your Pondless Basin (Design Shape and Depth)
- This is one of the more labor-intense tasks, so pace yourself and get
some friends and family to help you.
- We don't suggest excavating the basin more than 24 inches deep. At
this depth it will provide the proper water volume in the basin to operate
your waterfall and a short meandering stream

- All of the soil removed from the excavation should be spread and
compacted around the BIOFALLS filter. The filter box should be completely
surrounded by soil by the end of the excavation.
ON LEVELING
- While excavating, it is important to make sure that all of the edges
around the basin are level. This will help you to avoid any unexpected low
edges. There are several different tools methods that you can use to
level, depending on the resources that are available to you. The most
accurate method is a transit, either sight or laser. Take several readings
around the perimeter of your basin. Transits can be rented or bought,
however, may not be the most practical option for a one-time installation.
The two other commonly used options that utilize household items and may
be more convenient.
- You can take a standard straight 2x4 board and lay it across the
basin with the two foot level, you used with the BioFalls, on the
center. The level will prove if the two sides are even, and all the
edges can be measured in the same way, by altering the angle of the
board across the pondless basin.
- You can use a line level. A line level is basically a small bubble
level that can be attached to the end of a string. The other end of
the string should then be attached to a stake that is placed at any
point around the perimeter of your basin. The level can then be walked
around the edges of the basin and readings are taken at several
different locations to ensure the sides are even. Remember, that your
basin does not have to be perfectly level, but general readings should
be taken to avoid any major mistakes.
Step 6 Install the
Underlayment and EPDM Liner
- Once your excavation is complete remove any sharp objects from the
hole that could possibly damage the liner.
- Then unfold the Geo-textile Underlayment fabric and place it into your
excavated Pondless Waterfall basin. Start at the bottom of the basin and
remove the slack from the Underlayment; making sure it conforms to your
basin.

- Now it is time to install the EPDM liner on top of the Underlayment.
- This installation process is the same as the Underlayment, remember to
start at the bottom and contour the liner up and out of the Pondless
Waterfall basin.
- Try to remove the large fold, but the main goal is to make sure that
it's lying flat and going into all corners. It is not necessary to get it
perfect - you will be hiding the liner with rocks and gravel soon.
- Be sure the liner is high enough around the edges of the basin. This
won't be a problem provided you measured out the Pondless Basin and
excavated it correctly. Problem edges can be fixed easily by readjusting
the liner into the excavation, and backfilling (making the basin smaller)
in areas where there is not enough liner, or by simply buying a larger
liner.
Step 7
Setting the Micro Snorkel and Micro Centipede
- Once the underlayment and liner is in place Position the Micro Snorkel
and Micro Centipede into the proper spot at the bottom of the basin, of
course on top of the liner. We have placed large drainage pipe in the
bottom to help reduce the amount of rock used.



Step 8 Install
Rock and Gravel Rocking in the Pondless Waterfall
- We use 2 inch to 3 inch size of ugly gravel to fill the Pondless basin
up to within a few inches from the top. A finishing layer of decorative
gravel should be added to the top few inches.
- Now set larger boulders (6 to 18 inches) around the perimeter of the
basin to support the edges of the basin. The PVC flexible plumbing from
the filter should be brought over a slightly lowered edge of the liner and
to the location of the Pondless Snorkel Vault. Accent boulders and gravel
will be used to hide the plumbing.

Step 9 Rinsing
the Rocks and Gravel
- With a garden hose, rinse the rocks and gravel
- Place a clean-out pump or the pump purchased with the pondless kit in
the bottom of the Snorkel. Use a discharge hose or an extra section of PVC
Flex pipe to pump the muddy water out of the basin. This step helps the
pondless feature clear up faster.
Step 10 Hook up the
Pump and Plumbing
- The flexible PVC pipe from the Filter can be cut to the proper length
and inserted through the precut slot on the side of the Pondless Snorkel
Vault. Be sure to prime and glue the end of the PVC flex pipe and fitting
on the end of the check valve assembly. While gluing, remember to hold the
pipe into the fitting for at least 60 seconds to allow the glue to set up.
The cord from your Aquascape pump can be buried just beneath the stone and
gravel and run over to the electrical outlet.

Step 11 Fill
Pond/Basin with Water
- Begin to fill up the Pondless basin with water. It is typically filled
up to just below the decorative gravel.
Step 12
Build the Waterfall and
Meandering Stream
- You will need to do a little preparation work before building your
dream waterfall. It is recommended that you go to the library or buy a
stream and waterfall book and read about Stream and Waterfall
Construction, that is if you plan on creating them.

Installing the Filter Waterfall Snout


- Hold the liner up against the face of the filter, covering the
U-shape spillway opening. Be sure to leave slack at the base of the filter
to avoid stretching the liner when rocks are stacked to build the
waterfalls.
NOTE: Ignore this step if you are installing the waterfall snout outward
and proceed to the next step.
- For inward installation you will need to cut two vertical slits into
the liner along the left and right side of the opening. The flap of liner
can simply fall into the inside of the BIOFALLS filter when attaching the
waterfall snout.
- Temporarily install the waterfall snout and liner to the BIOFALLS
filter loosely with the two top corner screws and one center screw below
the waterfall snout. Using an awl or nail, poke the first hole through the
waterfall snout and liner penetrating into the corresponding threaded
insert on the BIOFALLS filter. Remove the awl or nail while holding the
waterfall snout and liner in place, and begin threading one of the screws
into the filter. Repeat this process for the screw on the opposite side.
When installing the waterfall snout inward we recommend installing a third
temporary screw at the center most screw hole along the bottom.

- Now remove the waterfall snout trying to keep the screws still
penetrating through the liner. These screws will serve as your guide when
reinstalling the waterfall snout.
- Apply a thick bead of fish-safe silicone sealant around the BIOFALLS
opening. The bead should follow the path of the threaded inserts (connect
the dots).

- Reattach the BIOFALLS waterfall snout using the pre-installed screws
as your guide. We recommend threading the lower center one first when
installing the waterfall snout in the inward direction.
- With all temporary screws secured back into position, you may now
install. Punch the remaining screw holes with the awl or nail and thread
in the remaining screws.

- Outward waterfall snout position will require the liner to be trimmed
back at this point.
- Let dry for at least 1 hour before introducing water.
Filter Media
- Filter media is not included with the Pondless Waterfall unit. The
aggregate in the basin provides a much larger surface area for bacteria to
grow than the filter media do.
Rock Tray
- The BIOFALLS filter comes with an upper support rack that also serves
as an easy way to help disguise the filter into the landscape using small
boulders, aquatic plant, and gravel. Arrange the stones, gravel and plants
in the rack in such a way as to hide the back and top of the filter.
- The rack sits in the upper portion of the BIOFALLS.
Creating the Waterfall
- Place two larger boulders on either side of the waterfalls you are
creating in order to "frame the waterfalls. The water will be running
between the two larger boulders you've set in place.

- You can now begin to stack the rocks between the two larger boulders.
These are the rocks that the water will be running over, so take your time
and be creative. Start with the larger rocks on the bottom and work your
way up to the smaller ones on top.
- Small stones and gravel can be used to fill in the gaps between the
larger waterfall's stones.

- The BIOFALLS is designed with a plastic lip for the water to cascade
off. You can use the BIOFALLS plastic waterfall stone or even piece(s) of
thin (no more than ¾ thick) natural slate.
- This stone can be attached to the BIOFALLS using black waterfall foam.
The black waterfall foam will come in handy when filling other gaps
between the stones that water is flowing over. The foam keeps the water
flowing over the top of the waterfall stones. Without the black waterfall
foam, you may lose some of the impact of your waterfall as water travels
beneath the rocks.

- Place smaller rocks on the rock ledge inside the MicroFalls to help
hide it in the landscape. The rock tray inside the BIOFALLS filter will
help disguise the rest of the unit into the landscape.
Waterfall Lights
- After the boulders are in position, set your waterfall accent lights.
The Lights can be placed beneath the waterfalls shining upwards. See
lighting system instructions for placement, positioning and installation
of waterfall lights.

Building the Stream
- Placing the BIOFALLS filter away from the edge of the pond is always a
good idea. This allows the creation of a meandering stream to add a touch
of nature to your water garden.
- We typically place the BIOFALLS filter 6-10 feet from the edge of the
pond. Twisting and turning the stream makes it look more natural, and will
require a minimum of 10'x15' piece of liner.
Excavation of the Stream
- Lay out the stream from the BIOFALLS filter to the pond. The typical
width of a stream should be between 2-4 feet wide (NOTE: the wider the
stream, the less movement of water you will have). Vary the width of the
stream throughout to mimic what would occur in nature.

- Excavate the stream to a depth of 6 inches to 1 foot. Vary the depth
in the corners and in smaller pools along the run of the stream to allow
water to pool in those areas.
- If your stream is being built on a slope, you will need to create a
few waterfalls in it. To hold the water back when the pump is shut off,
you need to build a check dam at each waterfall.
- To make the stream look much more natural, you should place some
larger boulders into it. To make this work properly, excavate the area
where the rock will be placed a few inches deeper. This will allow the
rock to sit into the bottom of the stream, not just on the streambed.
- Once you have the stream excavated, you can place the liner into it.
Installation of Liner and Rocks
- Connect the liner to the BIOFALLS filter as described above.
- Where the liner overlaps the pond, you will not need to seam the
liners together as long as you have a 6 inch waterfall or higher. Simply
overlap the stream liner over the top of the pond liner.
- Place rocks of varying sizes around the perimeter of the stream.
During excavation of the stream, you dug a few areas where larger rocks
will go. Put some of the Black Waterfall Foam into these divots and place
the rocks on top. The foam will allow the water to b diverted around and
over the rocks instead of underneath them.
Step 13 Bring in the
Topsoil
- Add topsoil to the berm and surrounding area in order to provide a
good substrate for future landscape plantings.
- The entire area may be mulched and any plant material installed if
necessary.
Step 14 Build the
Retaining Wall
- Finish off the berm where the BIOFALLS is buried by building a small
retaining wall out of boulders. This step may or may not be needed,
depending on the size of the berm and the transition into the existing
landscape.

Step 15 Plug in
and Tweak the Waterfalls
- As soon as the Pondless water feature is filled and all of the black
waterfalls foam is dry (if used on project), you may plug the pump in and
test the waterfall.
- You can "tweak
- the waterfall by placing smaller stones and gravel on the waterfall
cascades. This will change the appearance and sound of the water. Have fun
playing with the water coming over the falls until you achieve the desired
effect.


Step 16
Trim the Liner
- With everything running, go around the perimeter of the pond with a
pair of scissors and trim off any excess liner, always leaving several
inches above the water level as a precaution. The remaining liner edges
can be covered with gravel.
Note: Do not trim the liner until the waterfall is running and the pond is
filled to the desired level. Prematurely trimming the liner may cause
leaks.
Step 17 Mulch the
Berm
- The entire area surrounding the pond can now be mulched and any
surrounding plants added.
Step 18 Clean Up
- You're at the final stages of the project! All that is needed now is
to clean up the mess you've made around the yard
Step 19 Owner's
Manual and Beneficial Bacteria
- Refer to the following pages in the instruction booklet for care and
maintenance of your new water feature.
- The Signature Series Pondless Waterfall kits include water treatments
designed to reduce maintenance and keep the water crystal clear. Contact
your installer or supplier for more information on the complete water
treatment line available from Aquascape Designs.
Step 20
Enjoy!
- No further explanation needed for this step!
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